News tagged with biological model
Fruit flies use alcohol as a drug to kill parasites
Fruit flies infected with a blood-borne parasite consume alcohol to self-medicate, a behavior that greatly increases their survival rate, an Emory University study finds.
Feb 16, 2012 |
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Scientists create first 3-D map of human genome
(PhysOrg.com) -- For the first time, scientists have developed a method for generating accurate three-dimensional models of the entire DNA strand of a cell, known as a genome.
Jan 04, 2012 |
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In nitrogenase - enzyme critical for life, X-ray emission cracks mystery atom
Like a shadowy character just hidden from view, a mystery atom in the middle of a complex enzyme called nitrogenase had long hindered scientists' ability to study the enzyme fully.
Nov 17, 2011 |
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Mouse genetic blueprint developed
Researchers have developed a valuable mouse genetic blueprint that will accelerate future research and understanding of human genetics. The international team, led by researchers at the Wellcome Trust Sanger ...
Sep 14, 2011 |
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Scientists identify one cause of damage in Alzheimer's disease, find a way to stop it
Researchers suspect that a protein superstructure called amyloid beta is responsible for much of the neural damage of Alzheimer's disease.
Nov 09, 2010 |
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Complexity not so costly after all, analysis shows
The more complex a plant or animal, the more difficulty it should have adapting to changes in the environment. That's been a maxim of evolutionary theory since biologist Ronald Fisher put forth the idea in 1930.
Sep 27, 2010 |
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Researchers examine mechanisms that help cancer cells proliferate
A process that limits the number of times a cell divides works much differently than had been thought, opening the door to potential new anticancer therapies, researchers at UT Southwestern Medical Center report in the Aug. ...
Sep 01, 2009 |
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Synthetic chemical offers solution for crops facing drought
Crops and other plants are constantly confronted with adverse environmental conditions, lowering yield and costing farmers billions of dollars annually. Plants use specialized signals, called stress hormones, ...
Apr 30, 2009 |
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Biologists Discover Missing Piece of Plant Clock
(PhysOrg.com) -- Biologists at the University of California, San Diego have identified a key protein that links the morning and evening components of the daily biological clock of plants.
Mar 12, 2009 |
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Physicists devise method for building artificial tissue
New York University physicists have developed a method that models biological cell-to-cell adhesion that could also have industrial applications.
22 hours ago |
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Gaseous emissions from dinosaurs may have warmed prehistoric earth
Sauropod dinosaurs could in principle have produced enough of the greenhouse gas methane to warm the climate many millions of years ago, at a time when the Earth was warm and wet. That's according to calculations ...
Space & Earth / Earth Sciences
May 07, 2012 |
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Turing was right: Two proteins fit decades-old prediction
Today, Alan Turing is best known as the father of modern computer science, but in 1952 he sketched out a biological model in which two chemicals — an activator and an inhibitor — could interact to ...
Apr 24, 2012 |
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Simple fungus gives researchers new insight on key DNA process
(Phys.org) -- In the University of Oregon lab of Eric U. Selker, a simple fungus continues to provide big clues about a fundamental biological process that is essential for normal growth and development in ...
Apr 23, 2012 |
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Compounds shared by all worms may lead to parasite treatment
(Phys.org) -- Worms are important decomposers in soil and are great for fishing, but in humans, the slimy wrigglers spell trouble. Hookworms, whipworms, Ascaris, Guinea worms and trichina worms are just a ...
Apr 17, 2012 |
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Genome-scale model of cyanobacterium developed
(Phys.org) -- In an important step toward engineering bacteria to produce biofuel, scientists have developed one of the first global models for the nitrogen-fixing photosynthetic cyanobacterium Cyanothece ...
Apr 11, 2012 |
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